CN100412374C - Device for preventing vacuum in vortex type compressor - Google Patents
Device for preventing vacuum in vortex type compressor Download PDFInfo
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- CN100412374C CN100412374C CNB200310107456XA CN200310107456A CN100412374C CN 100412374 C CN100412374 C CN 100412374C CN B200310107456X A CNB200310107456X A CN B200310107456XA CN 200310107456 A CN200310107456 A CN 200310107456A CN 100412374 C CN100412374 C CN 100412374C
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Abstract
The present invention belongs to the technical field of a compressor and relates to a device for preventing the vacuum in a vortex type compressor. A valve chamber provided with a valve is formed in a vortex stator in the vortex type compressor of the present invention; the valve moves according to the sensed speed and the pressure of media sucked; a high-pressure by-pass flow pathway communicated with a high-pressure side and a low-pressure side is opened or closed by controlling the valve. In the structure, more than one groove is arranged at the middle at the upper surface of the valve opening or closing the high-pressure by-pass flow pathway. Since the grooves are formed at the middle of the valve opening and closing the high-pressure side and the low-pressure side pathway of the vortex type compressor in the present invention, the action force generated by the high-pressure air acts on the valve and is dispersed to the peripheral direction to smoothen the activity. Simultaneously, a plurality of grooves are formed so that the leaked air expands again and the leaked flow rate is reduced when the leaked air passes through the grooves; thus, the performance of the compressor is improved.
Description
Technical field
The invention belongs to the Compressor Technology field, the vacuum preventer that relates to scroll compressor, particularly about, open and close the high pressure side of scroll compressor and the middle groove that forms more than 1 of valve of low voltage side stream, thereby will disperse the invention of the vacuum preventer of the scroll compressor of minimizing leakage flow in the time of its action property of slyness to its circumferencial direction by the active force that puts on valve that pressurized gas produce.
Background technique
In general, the low-pressure type scroll compressor is close on its feature not have the structure of leaking, and the feasible low pressure chamber that is formed with the distal portion of motor part and outside supply power in particular cases is under the vacuum state at some and works.At this moment, produce vacuum discharge and cause damaging compressor on the frailish distal portion of dielectric film.In addition, the heat that takes place in the motor can't be communicated to the outside, by the overheated damage that also can cause dielectric film of motor part.Though propose several organization plans with respect to this, can not get satisfied result all the time.
At first, mention to discharging the aitiogenic valve of temperature of medium, be arranged at and connect on the stream of discharging chamber and suction chamber, make temperature when discharge gas rise to particular value when above, will discharge the method for the medium counter flow of chamber to the suction side by above-mentioned stream.Though this method realizes than being easier to, can when work as pressure in the high pressure shunting stream above certain value, the action of valve will significantly reduce.That is, when high pressure side gas to the pressure of valve during much larger than elastic force, valve will can not move.
Followingly describe in detail with reference to accompanying drawing.
Fig. 1 illustrates the sectional arrangement drawing of the scroll compressor in the prior art.Fig. 2 and Fig. 3 illustrate the structure and the working principle of vacuum preventer.As shown in the figure, the scroll compressor in the prior art is by the seal container 1 that forms body and enclose inside thereof; The upper bracket 2 that combines with the upper inside of above-mentioned seal container 1; The lower bracket 3 of above-mentioned seal container 1 inner lower combination; Being arranged at structures such as stator 4 between above-mentioned upper bracket 2 and the lower bracket 3 and rotor 5 forms.
In addition, the center of above-mentioned rotor 5 is combined with the crankshaft 6 that together rotates along with the rotation of rotor 5, be fixed with fixed eddy plate 7 on the above-mentioned upper bracket 2, the bottom of said fixing whirlpool dish 7 then is engaged with rotation whirlpool dish 8 and rotatable, and the position that the central part that 8 bottoms are coiled in above-mentioned rotation whirlpool departs from above-mentioned crankshaft 6 centers is carried and is combined with crankshaft 6 upper end eccentric part 6a and sliding sleeves 9.
Also have, the bottom of above-mentioned rotation whirlpool dish 8 is combined with and prevents to rotate the axle sleeve that 8 rotations are coiled in the whirlpool.In addition, the upside of said fixing whirlpool dish 7 is provided with the separating plate 11 that is used to separate seal container 1, and its top is the discharge chamber 20 of pressurized gas, and its downside then is a low voltage section 21.The downside of above-mentioned separating plate 11 is provided with medium suction pipe 12, and the upside of above-mentioned separating plate 11 then is provided with the discharge tube 13 that is used to discharge compressed media gas.In addition, the machine oil 22 that supplies to scroll compressor slides within part is filled in the bottom of above-mentioned seal container 1.
Simultaneously, the downside that the zoning high pressure is discharged the separating plate 11 of chamber 20 and low voltage section 21 is provided with IPR valve 30, and the inside of said fixing whirlpool dish 7 then is provided with vacuum preventer.
In the valve box 41 of above-mentioned vacuum preventer 40, valve 42 is set within it by spring 43 elasticity.
Among the figure, the 44th, low pressure chamber, the 45th, middle pressure chamber (the middle chamber of pressing), the 46th, high pressure shunting stream.
As above in the scroll compressor of structure, after at first power supply supplies to stator 4, rotate by the rotor 5 of said stator 4 inside and the interaction between the stator 4.
Immediately, be pressed into the crankshaft 6 that is arranged at above-mentioned rotor 5 central parts and begin rotation, by the rotation of above-mentioned crankshaft 6, the rotation whirlpool dish 8 that is arranged at crankshaft 6 upper end eccentric part 6a will be by the eccentric rotation of throw of eccentric length.
At this moment, above-mentioned rotation whirlpool dish 8 is that initial point turning radius length position apart rotates by axle sleeve 10 with the axle center.By rotatablely moving of above-mentioned rotation whirlpool dish 8, above-mentioned rotation whirlpool dish 8 and respectively overlapping of fixed eddy plate 7 form pressing chamber between the scrollwork, above-mentioned pressing chamber rotatablely moves by its persistency that volume will reduce when moving to the center, is further compressed thereby the suction pipe 12 by seal container 1 is drawn into the dielectric gas of above-mentioned seal container 1 inside.
At this moment, the dielectric gas of compression will be discharged to by the tap hole that forms on the discharge port that is formed centrally in the fixed eddy plate 7 and the separating plate 11 and discharge in the chamber 20.The compressed media gas that is discharged in the above-mentioned discharge chamber 20 will be delivered in another device of formation circuit by discharging the discharge tube 13 that is provided with in the chamber 20.
As above the scroll compressor of structure is under the situation of proper functioning, when the gas pressure of central pressure chamber 45 (the middle chamber of pressing) is made a concerted effort greater than the elastic force of the gas pressure of low pressure chamber 44 and valve spring 43, by the sealing of the valve in the valve box 41 stream.
In addition, when device work, the medium in hyperbaric chamber is diverted to low pressure chamber 44 keeping the pressure of low pressure chamber 44 by high pressure shunting stream 46, and has only just action under the elastic force of the gas pressure of low pressure chamber 44 and valve spring 43 is made a concerted effort greater than the situation of middle pressure chamber 45 gas pressures.
As above in the low-pressure type scroll compressor of structure, the suction passage of fixed eddy plate is provided with aforesaid valve mechanism of working by the speed that sucks gas and pressure, and forms the high low pressure shunting stream by above-mentioned valve opening and closing.The cylindrical shape valve sucks the active force of the active force that speed had of gas greater than valve spring when the compressor proper functioning, open thus suction passage also blocks disconnected above-mentioned shunting stream simultaneously.In the said structure, when raising owing to the pressure of discharging gas, therefore on high-tension side gas cause the action of valve significantly to reduce to the Vertical direction tube squeezing valve of valve motion.
Summary of the invention
As mentioned above, in the vacuum preventer of scroll compressor, for preventing low pressure chamber when the vacuum state, damage compressor and the existing vacuum preventing structure that uses, when high side pressure surpassed certain pressure, the pressure of low voltage side can not move at the vacuum state lower valve yet.For addressing the above problem, the object of the present invention is to provide, run through on the cylindrical shape valve that inserts in the path of high pressure side, valve box and low voltage side and form groove, make it disperse high pressure side to put on active force on the cylindrical shape valve, thereby surpass the vacuum preventer of the scroll compressor that certain pressure also can not exert an influence to action property when on high-tension side pressure with slick and sly its action property.
Another object of the present invention is to provides, and forms most grooves on the valve, expands when making the gas that leaks by most grooves reducing its leakage flow again, thereby improves the vacuum preventer of the scroll compressor of compression performance.
For achieving the above object, the technological scheme that the present invention deals with problems is: in the fixed eddy plate of scroll compressor, in having, in the valve box of low pressure stream and high pressure shunting stream sliding shutter and spring are set, valve can be moved according to speed that sucks medium and pressure, open and close high by valve event, high pressure shunting stream between low voltage side, in order to disperse the high pressure side to put on of the action of the active force of valve with slick and sly valve, on the valve that opens and closes high pressure shunting stream, design groove and make the groove of above-mentioned valve logical high in the card disconnection, during the high pressure of low voltage side shunting stream, be exposed to the high pressure side path and be provided with.
The groove of above-mentioned valve can be set as more than 1.
As above among the present invention of structure, the central authorities of valve form groove, will be disperseed slick and sly its action property by the active force that puts on valve that pressurized gas produce to its circumferencial direction.
Simultaneously, owing to form most grooves, expand again when making the gas that leaks and reduce its leakage flow, thereby improve the performance of compressor by most grooves.
Advantage and good effect are: as mentioned above, open and close the middle design of the valve groove of scroll compressor high pressure side and low voltage side stream among the present invention, will be disperseed slick and sly its action property by the active force that puts on valve that pressurized gas produce to its circumferencial direction.
Simultaneously, owing to form most grooves, expand again when making the gas that leaks and reduce its leakage flow, thereby improve the performance of compressor by most grooves.
Description of drawings
Fig. 1 to Fig. 4 illustrates the drawing of the vacuum preventer of prior art mesoscale eddies formula compressor.
Fig. 1 illustrates the sectional arrangement drawing of the scroll compressor in the prior art.
Fig. 2 and Fig. 3 illustrate the part sectional arrangement drawing of the structure and the working principle of vacuum preventer.
Fig. 4 illustrates the fundamental diagram of vacuum preventer.
Fig. 5 to Fig. 8 illustrates the drawing of the vacuum preventer of mesoscale eddies formula compressor of the present invention.
Fig. 5 illustrates the sectional arrangement drawing of vacuum preventer structure.
Fig. 6 illustrates the fundamental diagram of vacuum preventer.
Fig. 7 and Fig. 8 illustrate the profile of difformity valve.
Among each figure:
1: seal container, 2: upper bracket,
3: lower bracket, 4: stator,
5: rotor, 6: crankshaft,
6a: eccentric part, 7: fixed eddy plate,
8: rotation whirlpool dish, 9: sliding sleeve,
10: axle sleeve, 11: separating plate,
12: suction pipe, 13: discharge tube,
20: discharge chamber, 21: low voltage section,
22: machine oil, 30:IPR prevent high pressure valve,
40: vacuum preventer, 41: the valve box,
42a: groove, 42: valve,
43: spring, 44: low pressure chamber,
45: middle pressure chamber, 46: high pressure shunting stream,
Pd: radially pressure, Fpd: radial pressure,
Pm: middle pressure, Fpm: middle pressure,
Fs: elastic force, Fp
L: low pressure.
Embodiment
Below with reference to the embodiment among additional drawing detailed description the present invention.
Fig. 5 to Fig. 8 points out out the vacuum preventer figure of mesoscale eddies formula compressor of the present invention.
Fig. 5 points out out the sectional arrangement drawing of vacuum preventer structure.Fig. 7 and Fig. 8 respectively point out out the profile of difformity valve.
As shown in the figure, the inboard of fixed eddy plate 7 is provided with vacuum preventer 40.
In the valve box 41 of above-mentioned vacuum preventer 40, valve 42 is flexibly set in it by spring 43.
In the drawing, the 44th, low pressure chamber, the 45th, middle pressure chamber (the middle chamber of pressing), the 46th, high pressure shunting stream.(referring to Fig. 2,3)
In scroll compressor inside, be provided with valve 42 in the valve box 41 that forms in its fixed eddy plate 7, and move according to the speed and the pressure of the suction medium that perceives, by control, open and close the high pressure shunting stream 46 that is communicated with high pressure side and low voltage side to above-mentioned valve 42.In said structure, the valve 42 that opens and closes above-mentioned high pressure shunting stream 46 is provided with groove 42a.
The groove 42a of above-mentioned valve 42 will be exposed to the high pressure side path and will be provided with when the high pressure shunting stream 46 of logical high pressure side of valve 42 card disconnections and low voltage side.
As shown in Figure 7, the groove 42a of above-mentioned valve 42 can be set as 1, or as shown in Figure 8, can be set as more than 2 (in the drawing 3).
Fig. 4 and Fig. 6 illustrate the fundamental diagram of vacuum preventer.As shown in Figure 4, in the vacuum preventer in the prior art, under the situation of compressor proper functioning, suck the active force of the active force that speed had of gas, therefore open suction passage and the stream 46 of the disconnected above-mentioned high pressure shunting of card simultaneously greater than valve spring 43.Raise owing to discharge the pressure of gas, on high-tension side gas is to the Vertical direction tube squeezing valve of valve motion.In Fig. 4, the Pd Vertical direction acts on valve 42 and produces and hinders the power Fpd that valve 42 moves, and causes the action of valve 42 significantly to reduce.
In contrast, as shown in Figure 6, in the vacuum preventer among the present invention, form groove 42a in the middle of the valve 42, the active force that puts on valve 42 that is produced by pressurized gas disperses to its circumferencial direction.Make Fpd become O, thus the action of slick and sly valve 42.
In addition, form most groove 42a on the valve 42, expand again when making the gas that leaks and reduce its leakage flow, thereby improve the performance of compressor by most groove 42a.
Claims (2)
1. the vacuum preventer of a scroll compressor, be in having in the fixed eddy plate (7) at scroll compressor, in the valve box (41) of low pressure stream and high pressure shunting stream (46) valve (42) is set, spring (43), make valve according to speed that sucks medium and pressure action, action by valve (42), open and close the high pressure shunting stream (46) that is communicated with high pressure side and low voltage side, it is characterized in that: the valve (42) that opens and closes above-mentioned high pressure shunting stream (46) is gone up design fluted (42a), the groove (42a) of above-mentioned valve (42) will be exposed to the high pressure side channel setting when the high pressure shunting stream (46) of logical high pressure side of valve (42) card disconnection and low voltage side.
2. the vacuum preventer of scroll compressor according to claim 1, it is characterized in that: the groove (42a) of above-mentioned valve (42) can be designed to more than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310107456XA CN100412374C (en) | 2003-12-12 | 2003-12-12 | Device for preventing vacuum in vortex type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310107456XA CN100412374C (en) | 2003-12-12 | 2003-12-12 | Device for preventing vacuum in vortex type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1626825A CN1626825A (en) | 2005-06-15 |
| CN100412374C true CN100412374C (en) | 2008-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200310107456XA Expired - Fee Related CN100412374C (en) | 2003-12-12 | 2003-12-12 | Device for preventing vacuum in vortex type compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN100412374C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006016317A1 (en) * | 2006-04-06 | 2007-10-11 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Compressor arrangement with a valve unit in the intake area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020022454A (en) * | 2000-09-20 | 2002-03-27 | 구자홍 | Vaccum protection equipment for scroll compressor |
| KR20020027994A (en) * | 2000-10-06 | 2002-04-15 | 구자홍 | Device for preventing high vacuum in a scroll compressor |
| CN1353796A (en) * | 1999-06-01 | 2002-06-12 | Lg电子株式会社 | Apparatus for preventing vacuum compression of scroll compressor |
| US20030206813A1 (en) * | 2002-05-06 | 2003-11-06 | Lg Electronics Inc. | Vacuum preventing device of scroll compressor |
| US20030206812A1 (en) * | 2002-05-01 | 2003-11-06 | Yang-Hee Cho | Vacuum preventing device for scroll compressor |
-
2003
- 2003-12-12 CN CNB200310107456XA patent/CN100412374C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353796A (en) * | 1999-06-01 | 2002-06-12 | Lg电子株式会社 | Apparatus for preventing vacuum compression of scroll compressor |
| KR20020022454A (en) * | 2000-09-20 | 2002-03-27 | 구자홍 | Vaccum protection equipment for scroll compressor |
| KR20020027994A (en) * | 2000-10-06 | 2002-04-15 | 구자홍 | Device for preventing high vacuum in a scroll compressor |
| US20030206812A1 (en) * | 2002-05-01 | 2003-11-06 | Yang-Hee Cho | Vacuum preventing device for scroll compressor |
| US20030206813A1 (en) * | 2002-05-06 | 2003-11-06 | Lg Electronics Inc. | Vacuum preventing device of scroll compressor |
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| Publication number | Publication date |
|---|---|
| CN1626825A (en) | 2005-06-15 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20080820 Termination date: 20111212 |